Graphics card stopped working after installing new PSU

merycks · May 19, 2015

Hi,

My old power supply fan was making some awful noises so I got a new PSU and a new case. Everything else is the same as before.

Now I turn my PC on and my graphics card is not working. I tried on board graphics and that works fine. I checked and the fan on my graphics card is working.

Any ideas why my graphics card is suddenly refusing to work?

Thanks for your help.

cin19 · May 20, 2015

What is your GPU , old and new PSU? Can you list them?

merycks · May 20, 2015

cin19 :

Hi,

Thanks for responding.

Old PSU was a AC Bel ATX 12V. Power 660.
New PSU is a Thermaltake Toughpower Qfan 850W
Graphics Card is a Geforce GTX 550 ti

Hope that helps.

Thanks.

cin19 · May 20, 2015

Try the gtx550ti is other PC, because when you use the onboard iGPU, the PC works fine, so the gtx550ti maybe have problem.

CompGee · May 23, 2015

Check that the PCI/PCI-E power connector(s) are plugged in.

LairdEJM · Jun 10, 2015

I had a similar problem which I solved by resetting the CMOS.

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Graphics card stopped working after installing new PSU

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